Method setDisplayMode

ij/src/main/java/ij/macro/Functions.java:5718–5733

(ImagePlus imp, String mode)

	}

	void setDisplayMode(ImagePlus imp, String mode) {
		mode = mode.toLowerCase(Locale.US);
		if (!imp.isComposite())
			interp.error("Composite image required");
		int m = -1;
		if (mode.equals("composite"))
			m = IJ.COMPOSITE;
		else if (mode.equals("color"))
			m = IJ.COLOR;
		else if (mode.startsWith("gray"))
			m = IJ.GRAYSCALE;
		if (m==-1)
			interp.error("Invalid mode");
		((CompositeImage)imp).setMode(m);
		imp.updateAndDraw();
	}

	void swapStackImages(ImagePlus imp) {
		int n1 = (int)getFirstArg();